Shock-absorber.



PATENTED JUNE 23, 1908.

F. DORDNT. SHOCK ABSORBER. APPLICATION r ILED SEPT 25, 1907.

A 7703/15 (is member is rigidly secured to a part of the vehicle, as, for instance, the spring 23 adjacent the axle 24.

The outer end of the bar 14 is spaced from the outer end of the bar 15 by a spacing block of a thickness equal to the length of the sleeve 21. The bar 14 is of a length substantiall equal to that of the barsll and 12, but the ar 15 is somewhat shorter. A'n attaching bolt 26'extends through theouter end of the bar 14 and the spacing block 25, and serves for secur' the member to a part of the vehicle, as, for mstance, the frame 27. The bar 15 is directly connected to the spacing block and is an ularly adjustable in rc-v spect thereto. As s own, the spacingblock 25 is provided with a in 28, and the bar 15 4 and t e bars enga e is provided with a bee. portion 29 of a width somewhat greater than the width of the bar and provided with radially disposed openings ada ted for the rece tion of the pin 28.

E rtending throug the spacing block and disposed. ad acent the end of the head 29, there is provided a bolt 30, the nut 31 of which serves to engage with the outer surface of the head 29 and bind the same to the s acing block 25. Byloosening the nut 31, the outer end of the bar .15 may be moved laterally out of ensaglement with the pin and then moved ang'u ar y to; any desired position. The bar is then broug it into engagement with the block 25 and with the pin 28 entering one of the o )enings in the head 29. The nut 31 is then tightened. to firmly and rigidly bind the bars together. I

As the cain;su faced plates 18 and 19 are ri idly conne'cteto the,bars .11 and 15, it will be noted that there are certain predetermined angular positions of these two bars in respect to caclfotheiyat which the highest portions of the cams of one plate will enter the lowest ortion of the recessesof the otherplate and t is bars 11 and 15 will approach to the minimum distance apart. At this time the swing 20 ere its minimum influence O With the fiber washers with the minimum resistance. As either bar is moved in respect to each other, the

cams mount each'othcr and the resistance to "movement 1s increased in accordance with the extent of this movement until the highest portion of one cam engages with the highest portion of the other, at which the maximum resistance will be offered. In attachingthe shock absorbers to vehicles, it is desirable that with the vehicle carrying the normal load and with the vehicle springs under the normal compression,

the shock absorber should offer the minimum resistance. Due to the difi'erence in construction ofdifierent vehicles, the distance between! the frame and the axle or the other parts to which it isdesired to attach the shock absorber varies greatly, but with in ,improved construction the absorber may e at sensor tached to parts at variable distances apart, While retaining the resistance members in such positions that they act with the minimum effect when the vehicle carries the normal load.

In attaching the device in place, the bolt 13 is secured to one of the members and the bolt 2d secured to the other member. The nut 31 is loosened and the bar 15 moved to such a position that the cams occupy the positions shown in Fig. 2, when the vehicle said members comprisin two substantially parallel arms arranged a ternately with the arms of the other member at the pivotal point, means intermediate each arm of one member and a corresponding arm of the other member for ofiermg a resistance to the movement of said members, and resilientv means for forcing said arms and resistance means into engagement with each other, one

arm of each of said members presenting a cam surface at the pivotal point for varying the tension of said resilient means and vary-- ing the resistance.

2. In combination, two supporting mem-' bers pivotally connected together, each of said members presenting a cam surface in enga ement with the cam surface of the other member at the pivotal point, resilient means for holding said cam surfaces in engagement with each other, one oi said members mcluding two arms. pivoted to the other member, means for securing the outer end of one of said arms and the outer end. of the other member to parts movable in respect to each other, and adjustable means for securing the outer ends of said-arms tegether to vary the angularity of one of said arms in respect to the other member.

' 3. In combination, two members, one of which is movable in res set to the other,

means for resisting sai, movement, said.

members having predetermined relative po-, sitions and said means offering the minimum resistance to movement when said members are in. said positions, one of said members ineluding two arms pivoted to the other members may be retained independent of the normal distance between the points of attaeh ment.

4. In combination, two members, each having a securing point, a resistanee to the normal movement of said members in respect to each other, said resistance being at the minimum with the members in predetermined relative positions, one of said members including two arms pivoted to the other member, and means for rigidly securing together the outer ends of said arms at varying distances apart, whereby the normal distance between said securing points may be varied without varying said predetermined relationship of the members.

In combination, two members pivotally secured together and each having a securing point, a resistance to the movement of said members in respect to each other, said resistance being disposed at said pivotal point, one of said members eomprismg two arms pivoted together, said securing point being carried by one of said arms and said resistance being carried by the'other of said arms, and means for rigidly securing said arms together at varying angles in respect to each other, whereby the distances between said securing points may be varied without altering the predetermined relationship of the i'nemhers in respect to the resistance.

U. shock absorber, including two supporting arms pivotally connected together, two plates intermediate the said arms at their pivoial points and each presenting a cam surlace in engagement with the can] surl'ace of the oiher plate, resilient means for l'orcing said cam surl'aees into engagement with each other, and means lor securing the outer ends of said arms to members.movable in respect to each ol her and having normal positions at varying d'ist inn-es a )art, without altering the relalire positions ol said plates in respeet lo each other.

T. liiu'l\ absorber, including two supporting members pivolally ronn'ected logclher, ear-h ol' said members comprising two subslanlialb parall l arms arranged allernatol with ihe arms of the other member at the pivotal point, one arm of ea -h of said members presenting a ram surl'ace at the pivotal point, a spring i'or forcing said ram surlares into engagement with each other, and means 'l'or securing the opposile ends of said members to parts movable in respect to each other.

8. A shock absorber, including two sup porting members pivotally comierted together and each presenting e cam surl'ace engaging with the cam surface of the. other member at the pivotal point, attaching means'at the outer end of one of said members, and means movable in respect to the other member and adapted to be rigidly (onnected thereto for attaching said last-mentioned member to a part movable in respect to the attarhing point of the other member but with said members in a prerletermined angularrelationship 9 A shock absorber, including two sup porting members pivotally connected together, one of said members comprising two substantially parallel arms and the other of said members having one armextemling between the arms of the llI'St-ill(l1tl()llt(l member at the pivotal point, the arm of said seeond-mentioned mei'nber and one of the arms of the first-mentioned member presenting cam surfaces in engagement with each other at the pivotal point, and a resistance member intermediate the other ol the arms of the first-mentioned member and the arm of the second-mentioned member at the pivotal point.

it). A shock absorber, including two supporting members pivotally conneeted together, one of said members com )rising two substantially parallel arms and the other ol' said members having one arm extending between the arms oi the first-mentionedmember at the pivotal point, the arm oi said seeond-mentioned member and one ol the arms of the iirstmentioned member presenting earn surfaces in engagement with each other at the pivotal point, a resistance member intermediate the other ol the arms ol' the firstmentioned member and the arm or the secoml-mentioned member at the pivotal point, and a. spring, the tension ol' which is varied by a movement ol' the members and the ram surl'ares in respert lo r-arh other.

in testimony whereol' l have signed my name to this speeiliration in the presenee'ol' -l wo subscribing witnesses.

FRANK DORON'I. \"Vitnesses:

S'rrzwan'r 'lavmu, illRAM M. QITWK. 

